The three people to talk to in the hospital are the security chief, compliance officer and maintenance director.
The security chief is responsible for emcomm and would be able to tell you if they have any transmission equipment generating the RF.
The compliance officer and maintenance director to a lesser extent solely focus on CMS/Joint Commission/DNV regulations. If there is a piece of faulty equipment causing that type of RF, they will want to know.
Be polite, introduce yourself and simply explain that you're concerned about the RF and you'd be willing to help them track it down. Chances are you'll gain instant friends.